1. birch   Tanne   Birke   Zeder   Ahorn   Hint Half-n-half Clue   2. oak   Birke   Eiche   Pappel   Buche   Half-n-half Clue   3. cedar   Tanne   Zeder   Kastaniebaum   Pappel   Half-n-half Clue   4. chestnut   Kastaniebaum   Ulme   Kiefer   Zeder   Half-n-half Clue   5. elm   Kastaniebaum   Ulme   Tanne   Kiefer   Half-n-half Clue   6. fir   Tanne   Ahorn   Pappel   Kastaniebaum   Half-n-half Clue   7. pine   Eiche   Tanne   Kastaniebaum   Kiefer   Half-n-half Clue